Rockwell Automation Liqui-Flo AC GP Vector Drive Version 6.4 - Manual (Page 149)

Programming Reference 4-67
The value entered should be within 10% of actual line voltage. If this parameter is set
too low, it may cause a drive fault on overvoltage.
If actual frequency exceeds the set value, the inverter will fault (OF will be displayed
on the keypad/display) and the drive will stop.
The overfrequency limit should be set approximately 15 Hz above Maximum Speed
(P.004).
H.021 AC Line Volts
This parameter is the
phase-to-phase line
voltage provided to
the drive input power
terminals. Parameter Range: 300 to 565 VAC
Default Setting: 460
Parameter Type: Configurable
Refer also to parameters: N/A
H.022 Overfrequency Limit
This parameter
provides overspeed
protection by setting
the fault level for
maximum frequency
output. Parameter Range:
30.0 to 4 x H.001 + 5% or 210 Hz
*
Default Setting: 90.0
Parameter Type: Configurable
Refer also to parameters: P.004 Maximum Speed
* Drive will use the lesser value.
!
ATTENTION: The user is responsible for ensuring that driven machinery,
all drive-train mechanisms, and application material are capable of safe
operation at the overfrequency limit. Failure to observe this precaution
could result in bodily injury.